Resource conservation: economics and policies /
Wedi'i Gadw mewn:
| Prif Awdur: | |
|---|---|
| Awdur Corfforaethol: | |
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
[Berkeley] :
University of California, Division of Agricultural Sciences, Agricultural Experiment Station,
1963.
|
| Rhifyn: | Rev. ed. |
| Pynciau: |
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